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Electromagnetic contactor

a contactor and electromagnetic technology, applied in the field of electromagnetic contactors, can solve the problems of a1 requiring a large amount of effort and time, and achieve the effect of easy and efficient performan

Inactive Publication Date: 2018-07-12
FUJI ELECTRIC FA COMPONENTS & SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an electromagnetic contactor that enables easy and efficient electrical connection work to be performed. This allows for the connection of the contactor to other electrical components in a current path. Overall, the invention improves the overall efficiency of electrical connection work.

Problems solved by technology

For this reason, there is a problem in that the contact device in US 2008 / 0084260 A1 requires a large amount of effort and time for connection work of connecting another electrical component.

Method used

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  • Electromagnetic contactor
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Examples

Experimental program
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Effect test

first embodiment

[0036]With reference to FIGS. 1 to 12, an electromagnetic contactor 1 of a first embodiment will be described. The following description will be made assuming that the upside, the downside, the left side, the right side, the front side, and the rear side in FIGS. 1, 2, 1, and 12 are respectively indicated by “up”, “down”, “left”, “right”, “front”, and “rear”. Cross sections taken along the planes IV-IV, V-V, VI-VI, and VII-VII in FIG. 2 are respectively illustrated in FIGS. 4, 5, 6, and 7.

[0037]As illustrated in FIG. 1, the electromagnetic contactor 1 includes a first insulating case 2 and a second insulating case 3. Main contact external terminal portions 50a and 50b are arranged in a projecting state on the right and left side surfaces of the first insulating case 2, an auxiliary contact external terminal portion 51 is arranged on the front side of the first insulating case 2, and a pair of electromagnet unit external terminal portions 52A and 52B are arranged on the left side sur...

second embodiment

[0096]As illustrated in FIG. 13, in an electromagnetic contactor 1 of a second embodiment, a lead wire holding portion 81 that is made of an insulating elastic body such as synthetic rubber is arranged on the upper surface of a top plate 11.

[0097]The lead wire holding portion 81 includes a mounting plate 84 that has a rectangular shape and on which circular insertion holes 82 and 83 that have substantially the same shapes as the external shapes of main fixed contacts 17 and 18, respectively, are formed, protruding portions 85 to 88 that protrude at four locations and along the edges of the long sides and short sides of and from the upper surface of the mounting plate 84, and holding grooves 85a to 88a that are respectively formed on the protruding portions 85 to 88 in a linear form.

[0098]A lead wire 73 that is connected between a second auxiliary contact electrode 38 and a wiring pattern 62 (a lead wire connection hole 62a) of a wiring board 55 extends in a state of having entered a...

third embodiment

[0103]As illustrated in FIG. 14, in an electromagnetic contactor 1 of a third embodiment, a lead wire holding portion 90 that is made of an insulating elastic body such as synthetic rubber is arranged on the upper surface of a top plate 11.

[0104]The lead wire holding portion 90 includes a mounting plate 93 that has a rectangular shape and a larger thickness than that of the mounting plate 84 in the second embodiment and on which circular insertion holes 91 and 92 that have substantially the same shapes as the external shapes of main fixed contacts 17 and 18, respectively, are formed and holding grooves 94 and 95 that are formed on the short side surfaces of the mounting plate 93.

[0105]In the third embodiment, a lead wire 73 that is connected between a second auxiliary contact electrode 38 and a wiring pattern 62 (a lead wire connection hole 62a) of a wiring board 55 extends in a state of having entered and being held in the holding groove 94 of the lead wire holding portion 90. In a...

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Abstract

To provide an electromagnetic contactor that enables electrical connection work of connecting the electromagnetic contactor to another electrical component disposed in a current path to be performed easily and efficiently. An electromagnetic contactor includes a main contact portion; an auxiliary contact portion; a contact housing case that houses the main contact portion and the auxiliary contact portion; an electromagnet unit that drives a movable plunger coupled to a connecting shaft of the main contact portion; main contact electrodes project out of a case wall of the contact housing case to an outside; auxiliary contact electrodes that are connected to a pair of fixed contacts of the auxiliary contact portion and project out of the case wall to an outside; and an auxiliary contact external terminal portion that is connected to the auxiliary contact electrodes and is arranged on a portion of the case wall.

Description

CROSS REFERENCE TO RELATED APPLICATIONS AND INCORPORATION BY REFERENCE[0001]This application claims benefit of priority under 35 USC 119 based on Japanese Patent Application No. 2017-002332 filed on Jan. 11, 2017, the entire contents of which are incorporated by reference herein.TECHNICAL FIELD[0002]The present invention relates to an electromagnetic contactor that performs opening and closing of a current path.BACKGROUND ART[0003]As an electromagnetic contactor that performs opening and closing of a current path, for example, an electromagnetic contactor described in US 2008 / 0084260 A1 has been conventionally known.[0004]The electromagnetic contactor in US 2008 / 0084260 A1 includes a main contact mechanism that includes a pair of main fixed contacts and a main movable contact that is contactable with and separable from the pair of main fixed contacts, an auxiliary contact mechanism that operates in conjunction with the main movable contact, and an electromagnet unit that drives the ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01H50/54H01H50/14H01H50/02
CPCH01H50/541H01H50/02H01H50/14H01H50/20H01H50/443
Inventor TAKAYA, KOUETSUTASHIMA, YUKIADACHI, HIDEONAKA, YASUHIROKONISHI, KOUJUN
Owner FUJI ELECTRIC FA COMPONENTS & SYST CO LTD